[INFO] cloning repository https://github.com/VirisOnGithub/vrptw
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/VirisOnGithub/vrptw" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVirisOnGithub%2Fvrptw", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVirisOnGithub%2Fvrptw'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 346d69d2d3e4adbbc1b806c1abf0ac4f36d9d03c
[INFO] checking VirisOnGithub/vrptw against master#540f43a224317d894a9a0710a8d67704f179a33c for pr-155193
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVirisOnGithub%2Fvrptw" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/VirisOnGithub/vrptw
[INFO] finished tweaking git repo https://github.com/VirisOnGithub/vrptw
[INFO] tweaked toml for git repo https://github.com/VirisOnGithub/vrptw written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/VirisOnGithub/vrptw on toolchain 540f43a224317d894a9a0710a8d67704f179a33c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+540f43a224317d894a9a0710a8d67704f179a33c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/VirisOnGithub/vrptw already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+540f43a224317d894a9a0710a8d67704f179a33c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded inventory v0.3.22
[INFO] [stderr]   Downloaded egui-wgpu v0.28.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+540f43a224317d894a9a0710a8d67704f179a33c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 33f7c683d833b560461ce63b055a7c31189aeb4136c95156a6186321967a0015
[INFO] running `Command { std: "docker" "start" "-a" "33f7c683d833b560461ce63b055a7c31189aeb4136c95156a6186321967a0015", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33f7c683d833b560461ce63b055a7c31189aeb4136c95156a6186321967a0015", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33f7c683d833b560461ce63b055a7c31189aeb4136c95156a6186321967a0015", kill_on_drop: false }`
[INFO] [stdout] 33f7c683d833b560461ce63b055a7c31189aeb4136c95156a6186321967a0015
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+540f43a224317d894a9a0710a8d67704f179a33c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e87868e112a676f108b09bec112788725810502e42424b2dff80498140a3d33d
[INFO] running `Command { std: "docker" "start" "-a" "e87868e112a676f108b09bec112788725810502e42424b2dff80498140a3d33d", kill_on_drop: false }`
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[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/optimizers/aco.rs:378:17
[INFO] [stdout]     |
[INFO] [stdout] 378 |             let mut solutions: Vec<Solution> = (0..self.params.n_ants)
[INFO] [stdout]     |                 ----^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/optimizers/aco.rs:378:17
[INFO] [stdout]     |
[INFO] [stdout] 378 |             let mut solutions: Vec<Solution> = (0..self.params.n_ants)
[INFO] [stdout]     |                 ----^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 49.36s
[INFO] running `Command { std: "docker" "inspect" "e87868e112a676f108b09bec112788725810502e42424b2dff80498140a3d33d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e87868e112a676f108b09bec112788725810502e42424b2dff80498140a3d33d", kill_on_drop: false }`
[INFO] [stdout] e87868e112a676f108b09bec112788725810502e42424b2dff80498140a3d33d
